342 lines
11 KiB
C
342 lines
11 KiB
C
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/*-
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* BSD LICENSE
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*
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* Copyright(c) 2016 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __L3FWD_EM_HLM_SSE_H__
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#define __L3FWD_EM_HLM_SSE_H__
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/**
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* @file
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* This is an optional implementation of packet classification in Exact-Match
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* path using rte_hash_lookup_multi method from previous implementation.
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* While sequential classification seems to be faster, it's disabled by default
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* and can be enabled with HASH_LOOKUP_MULTI global define in compilation time.
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*/
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#include "l3fwd_sse.h"
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static inline void
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em_get_dst_port_ipv4x8(struct lcore_conf *qconf, struct rte_mbuf *m[8],
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uint8_t portid, uint16_t dst_port[8])
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{
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int32_t ret[8];
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union ipv4_5tuple_host key[8];
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__m128i data[8];
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data[0] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[0], __m128i *,
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sizeof(struct ether_hdr) +
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offsetof(struct ipv4_hdr, time_to_live)));
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data[1] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[1], __m128i *,
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sizeof(struct ether_hdr) +
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offsetof(struct ipv4_hdr, time_to_live)));
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data[2] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[2], __m128i *,
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sizeof(struct ether_hdr) +
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offsetof(struct ipv4_hdr, time_to_live)));
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data[3] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[3], __m128i *,
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sizeof(struct ether_hdr) +
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offsetof(struct ipv4_hdr, time_to_live)));
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data[4] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[4], __m128i *,
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sizeof(struct ether_hdr) +
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offsetof(struct ipv4_hdr, time_to_live)));
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data[5] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[5], __m128i *,
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sizeof(struct ether_hdr) +
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offsetof(struct ipv4_hdr, time_to_live)));
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data[6] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[6], __m128i *,
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sizeof(struct ether_hdr) +
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offsetof(struct ipv4_hdr, time_to_live)));
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data[7] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[7], __m128i *,
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sizeof(struct ether_hdr) +
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offsetof(struct ipv4_hdr, time_to_live)));
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key[0].xmm = _mm_and_si128(data[0], mask0);
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key[1].xmm = _mm_and_si128(data[1], mask0);
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key[2].xmm = _mm_and_si128(data[2], mask0);
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key[3].xmm = _mm_and_si128(data[3], mask0);
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key[4].xmm = _mm_and_si128(data[4], mask0);
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key[5].xmm = _mm_and_si128(data[5], mask0);
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key[6].xmm = _mm_and_si128(data[6], mask0);
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key[7].xmm = _mm_and_si128(data[7], mask0);
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const void *key_array[8] = {&key[0], &key[1], &key[2], &key[3],
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&key[4], &key[5], &key[6], &key[7]};
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rte_hash_lookup_multi(qconf->ipv4_lookup_struct, &key_array[0], 8, ret);
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dst_port[0] = (uint8_t) ((ret[0] < 0) ?
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portid : ipv4_l3fwd_out_if[ret[0]]);
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dst_port[1] = (uint8_t) ((ret[1] < 0) ?
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portid : ipv4_l3fwd_out_if[ret[1]]);
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dst_port[2] = (uint8_t) ((ret[2] < 0) ?
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portid : ipv4_l3fwd_out_if[ret[2]]);
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dst_port[3] = (uint8_t) ((ret[3] < 0) ?
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portid : ipv4_l3fwd_out_if[ret[3]]);
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dst_port[4] = (uint8_t) ((ret[4] < 0) ?
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portid : ipv4_l3fwd_out_if[ret[4]]);
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dst_port[5] = (uint8_t) ((ret[5] < 0) ?
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portid : ipv4_l3fwd_out_if[ret[5]]);
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dst_port[6] = (uint8_t) ((ret[6] < 0) ?
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portid : ipv4_l3fwd_out_if[ret[6]]);
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dst_port[7] = (uint8_t) ((ret[7] < 0) ?
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portid : ipv4_l3fwd_out_if[ret[7]]);
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if (dst_port[0] >= RTE_MAX_ETHPORTS ||
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(enabled_port_mask & 1 << dst_port[0]) == 0)
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dst_port[0] = portid;
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if (dst_port[1] >= RTE_MAX_ETHPORTS ||
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(enabled_port_mask & 1 << dst_port[1]) == 0)
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dst_port[1] = portid;
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if (dst_port[2] >= RTE_MAX_ETHPORTS ||
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(enabled_port_mask & 1 << dst_port[2]) == 0)
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dst_port[2] = portid;
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if (dst_port[3] >= RTE_MAX_ETHPORTS ||
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(enabled_port_mask & 1 << dst_port[3]) == 0)
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dst_port[3] = portid;
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if (dst_port[4] >= RTE_MAX_ETHPORTS ||
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(enabled_port_mask & 1 << dst_port[4]) == 0)
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dst_port[4] = portid;
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if (dst_port[5] >= RTE_MAX_ETHPORTS ||
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(enabled_port_mask & 1 << dst_port[5]) == 0)
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dst_port[5] = portid;
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if (dst_port[6] >= RTE_MAX_ETHPORTS ||
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(enabled_port_mask & 1 << dst_port[6]) == 0)
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dst_port[6] = portid;
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if (dst_port[7] >= RTE_MAX_ETHPORTS ||
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(enabled_port_mask & 1 << dst_port[7]) == 0)
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dst_port[7] = portid;
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}
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static inline void
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get_ipv6_5tuple(struct rte_mbuf *m0, __m128i mask0,
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__m128i mask1, union ipv6_5tuple_host *key)
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{
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__m128i tmpdata0 = _mm_loadu_si128(
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rte_pktmbuf_mtod_offset(m0, __m128i *,
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sizeof(struct ether_hdr) +
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offsetof(struct ipv6_hdr, payload_len)));
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__m128i tmpdata1 = _mm_loadu_si128(
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rte_pktmbuf_mtod_offset(m0, __m128i *,
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sizeof(struct ether_hdr) +
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offsetof(struct ipv6_hdr, payload_len) +
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sizeof(__m128i)));
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__m128i tmpdata2 = _mm_loadu_si128(
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rte_pktmbuf_mtod_offset(m0, __m128i *,
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sizeof(struct ether_hdr) +
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offsetof(struct ipv6_hdr, payload_len) +
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sizeof(__m128i) + sizeof(__m128i)));
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key->xmm[0] = _mm_and_si128(tmpdata0, mask0);
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key->xmm[1] = tmpdata1;
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key->xmm[2] = _mm_and_si128(tmpdata2, mask1);
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}
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static inline void
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em_get_dst_port_ipv6x8(struct lcore_conf *qconf, struct rte_mbuf *m[8],
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uint8_t portid, uint16_t dst_port[8])
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{
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int32_t ret[8];
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union ipv6_5tuple_host key[8];
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get_ipv6_5tuple(m[0], mask1, mask2, &key[0]);
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get_ipv6_5tuple(m[1], mask1, mask2, &key[1]);
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get_ipv6_5tuple(m[2], mask1, mask2, &key[2]);
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get_ipv6_5tuple(m[3], mask1, mask2, &key[3]);
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get_ipv6_5tuple(m[4], mask1, mask2, &key[4]);
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get_ipv6_5tuple(m[5], mask1, mask2, &key[5]);
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get_ipv6_5tuple(m[6], mask1, mask2, &key[6]);
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get_ipv6_5tuple(m[7], mask1, mask2, &key[7]);
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const void *key_array[8] = {&key[0], &key[1], &key[2], &key[3],
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&key[4], &key[5], &key[6], &key[7]};
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rte_hash_lookup_multi(qconf->ipv6_lookup_struct, &key_array[0], 8, ret);
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dst_port[0] = (uint8_t) ((ret[0] < 0) ?
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portid : ipv6_l3fwd_out_if[ret[0]]);
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dst_port[1] = (uint8_t) ((ret[1] < 0) ?
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portid : ipv6_l3fwd_out_if[ret[1]]);
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dst_port[2] = (uint8_t) ((ret[2] < 0) ?
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portid : ipv6_l3fwd_out_if[ret[2]]);
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dst_port[3] = (uint8_t) ((ret[3] < 0) ?
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portid : ipv6_l3fwd_out_if[ret[3]]);
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dst_port[4] = (uint8_t) ((ret[4] < 0) ?
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portid : ipv6_l3fwd_out_if[ret[4]]);
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dst_port[5] = (uint8_t) ((ret[5] < 0) ?
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portid : ipv6_l3fwd_out_if[ret[5]]);
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dst_port[6] = (uint8_t) ((ret[6] < 0) ?
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portid : ipv6_l3fwd_out_if[ret[6]]);
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dst_port[7] = (uint8_t) ((ret[7] < 0) ?
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portid : ipv6_l3fwd_out_if[ret[7]]);
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if (dst_port[0] >= RTE_MAX_ETHPORTS ||
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(enabled_port_mask & 1 << dst_port[0]) == 0)
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dst_port[0] = portid;
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if (dst_port[1] >= RTE_MAX_ETHPORTS ||
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(enabled_port_mask & 1 << dst_port[1]) == 0)
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dst_port[1] = portid;
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if (dst_port[2] >= RTE_MAX_ETHPORTS ||
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(enabled_port_mask & 1 << dst_port[2]) == 0)
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dst_port[2] = portid;
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if (dst_port[3] >= RTE_MAX_ETHPORTS ||
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(enabled_port_mask & 1 << dst_port[3]) == 0)
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dst_port[3] = portid;
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if (dst_port[4] >= RTE_MAX_ETHPORTS ||
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(enabled_port_mask & 1 << dst_port[4]) == 0)
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dst_port[4] = portid;
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if (dst_port[5] >= RTE_MAX_ETHPORTS ||
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(enabled_port_mask & 1 << dst_port[5]) == 0)
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dst_port[5] = portid;
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if (dst_port[6] >= RTE_MAX_ETHPORTS ||
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(enabled_port_mask & 1 << dst_port[6]) == 0)
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dst_port[6] = portid;
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if (dst_port[7] >= RTE_MAX_ETHPORTS ||
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(enabled_port_mask & 1 << dst_port[7]) == 0)
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dst_port[7] = portid;
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}
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static inline __attribute__((always_inline)) uint16_t
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em_get_dst_port(const struct lcore_conf *qconf, struct rte_mbuf *pkt,
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uint8_t portid)
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{
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uint8_t next_hop;
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struct ipv4_hdr *ipv4_hdr;
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struct ipv6_hdr *ipv6_hdr;
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if (RTE_ETH_IS_IPV4_HDR(pkt->packet_type)) {
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/* Handle IPv4 headers.*/
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ipv4_hdr = rte_pktmbuf_mtod_offset(pkt, struct ipv4_hdr *,
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sizeof(struct ether_hdr));
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next_hop = em_get_ipv4_dst_port(ipv4_hdr, portid,
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qconf->ipv4_lookup_struct);
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if (next_hop >= RTE_MAX_ETHPORTS ||
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(enabled_port_mask & 1 << next_hop) == 0)
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next_hop = portid;
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return next_hop;
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} else if (RTE_ETH_IS_IPV6_HDR(pkt->packet_type)) {
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/* Handle IPv6 headers.*/
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ipv6_hdr = rte_pktmbuf_mtod_offset(pkt, struct ipv6_hdr *,
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sizeof(struct ether_hdr));
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next_hop = em_get_ipv6_dst_port(ipv6_hdr, portid,
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qconf->ipv6_lookup_struct);
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if (next_hop >= RTE_MAX_ETHPORTS ||
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(enabled_port_mask & 1 << next_hop) == 0)
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next_hop = portid;
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return next_hop;
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}
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return portid;
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}
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/*
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* Buffer optimized handling of packets, invoked
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* from main_loop.
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*/
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static inline void
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l3fwd_em_send_packets(int nb_rx, struct rte_mbuf **pkts_burst,
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uint8_t portid, struct lcore_conf *qconf)
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{
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int32_t j;
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uint16_t dst_port[MAX_PKT_BURST];
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/*
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* Send nb_rx - nb_rx%8 packets
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* in groups of 8.
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*/
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int32_t n = RTE_ALIGN_FLOOR(nb_rx, 8);
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for (j = 0; j < n; j += 8) {
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uint32_t pkt_type =
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pkts_burst[j]->packet_type &
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pkts_burst[j+1]->packet_type &
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pkts_burst[j+2]->packet_type &
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pkts_burst[j+3]->packet_type &
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pkts_burst[j+4]->packet_type &
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|
|
pkts_burst[j+5]->packet_type &
|
||
|
|
pkts_burst[j+6]->packet_type &
|
||
|
|
pkts_burst[j+7]->packet_type;
|
||
|
|
|
||
|
|
if (pkt_type & RTE_PTYPE_L3_IPV4) {
|
||
|
|
|
||
|
|
em_get_dst_port_ipv4x8(qconf, &pkts_burst[j], portid, &dst_port[j]);
|
||
|
|
|
||
|
|
} else if (pkt_type & RTE_PTYPE_L3_IPV6) {
|
||
|
|
|
||
|
|
em_get_dst_port_ipv6x8(qconf, &pkts_burst[j], portid, &dst_port[j]);
|
||
|
|
|
||
|
|
} else {
|
||
|
|
dst_port[j] = em_get_dst_port(qconf, pkts_burst[j], portid);
|
||
|
|
dst_port[j+1] = em_get_dst_port(qconf, pkts_burst[j], portid);
|
||
|
|
dst_port[j+2] = em_get_dst_port(qconf, pkts_burst[j], portid);
|
||
|
|
dst_port[j+3] = em_get_dst_port(qconf, pkts_burst[j], portid);
|
||
|
|
dst_port[j+4] = em_get_dst_port(qconf, pkts_burst[j], portid);
|
||
|
|
dst_port[j+5] = em_get_dst_port(qconf, pkts_burst[j], portid);
|
||
|
|
dst_port[j+6] = em_get_dst_port(qconf, pkts_burst[j], portid);
|
||
|
|
dst_port[j+7] = em_get_dst_port(qconf, pkts_burst[j], portid);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
for (; j < n; j++)
|
||
|
|
dst_port[j] = em_get_dst_port(qconf, pkts_burst[j], portid);
|
||
|
|
|
||
|
|
send_packets_multi(qconf, pkts_burst, dst_port, nb_rx);
|
||
|
|
|
||
|
|
}
|
||
|
|
#endif /* __L3FWD_EM_SSE_HLM_H__ */
|